Lock.



"Nv- 709,309. i l- Patented sept. |64. |9112; i H. W. EICHEAB.

LocK. (@gimm# mea my 21. 1901.) (No Model.)

FIG-

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manu" NTTED STATES HARRY WALTER EICHER, OF MEYERSDALE, PENNSYLVANIA.

LOCK.

SPECIFICATION forming part of Letters Patent No. 709,309, dated September 16, 1902.

" Application led May 21, 1901. Serial No. 61,252. (No model.)

To a/ZZ whom it' may oon/cern:

Beit known that LHARRY WALTER EICHER, a citizen of the United States, residing at and whose post-office address is Meyersdale, in the county of Somerset and State of Pennsyl- Vania` have invented new and useful 1mprovements in Locks, of which the following is a specication.

My invention has relation to new and useful improvements in locks; and the object is to provide a lock `of t-he sliding-bolt type which will be simple in construction,efiicient, and durable in use.

The invention consists in the arrangement and aggroupment of the elements, which will be more fully described hereinafter and the novelty of'which will be particularly pointed out and distinctly claimed.

I have fully and clearly illustrated my in- Ventionin the accompanyingdrawings,where ln.- t

Figure l is a view in side elevation show` ing the one side of the casing removed to disclose the relative arrangement of the elements comprising the locks. Fig. 2 is a transverse vertical section on the line 2 2 of Fig. l. j Fig. 3 is a detail perspective of the lining-bar removed from thecasing. Fig. L is a detail perspective of the sliding bolt. Y Fig. 5 is a View similar to Fig. 1, showing a slightlymodified form of lock.

Referring to the drawings, 1 designates a face-plate of any suitable form and provided with any desired means for attaching the same to a door. Secured to the rear face of this face-plate is a rearwardly-extending casing 2, of 'suitable form and size to best adapt it to the purposes for which it is intended and in which the movable elements of the locking mechanism are arranged t0 Operate. I have shown this casing as comprising a body which is rectangular in longitudinal section and twin foil in cross-section and is provided with the usual keyhole`8, substantially as shown in the drawings. j

Longitudinally disposeld within the casing and resting upon the base thereof isaliningbar 4, the under side of which conforms to the portion of the casing upon which it rests. This bar 4 is formed so as to fit snugly within the casing in order that it may not become loose or displaced by the movement of the parts when operated or through the continued use of the lock. Upon the bar 4 and closely adjacent to the keyhole 3 are provided vertically-projecting wards 5, of any suitable form and arrangement, to properly exclude all keys not having wards suitable to release the lock, and at a point adjacent the forward end of the said bar is a vertical extension 6, to which is pivoted a tumbler 7, which tumbier extends rearwardly and terminates in a longitudinally-extending finger 8, the end of which is normally located just over the keyhole, substantially as shown in Fig. 1 of the drawings. lVithin the body of thetumbler 7 is provided a slot 9, which extends longitudinally of the said tumbler-and has formed in its upper edge two recesses lO 10X, the portion of the tumbler between the two recesses forming a projection 11.

Slidably arranged within the casing is a bolt l2, the rear portion of which is extended to form a depending iinger 13, which extends to a point adjacent the keyhole and within the path ot' the key, so that the linger may be engaged by the key to retract the bolt. The bolt 12 is also provided with a second inger 14, arranged in advance of the linger 13 and also in the path of the key and adapted to be engaged thereby when it is desired to project the bolt.

Upon the side of the bolt 12 is formed a lateral projection 15, which is arranged to eX- tend within the slot 9 in the tumbler and be seated in the recesses 10 or 10X, accordingly as the bolt is projected or retracted.

The free end of the tumbler 7 is held n0rmally depressed by means of a leaf-spring 16, one end ot' which is rigidly secured to the eX- tension 6 on the lining-bar and the other end of which is free to bear downwardly upon a laterally-projecting pin 17, provided on the tumbler. By means of this spring it will be seen that the tumbler is held in positive engagement with the projection 15 on the bolt, whereby the said projection is always held securely seated within one or the other of the recesses in the slot of the tumbler and against accidental displacement by the endsof the slot and the projection 11.

As stated above, the tumbler is normally held pressed downwardly by the leaf-spring 16 until the projection 15 on the bolt engages ICO the recess 10. If, however, it is desired to unlock or retract the bolt, the key is revolved past the wards 5, so as to raise the tumbler out of engagement with the projection 15, and after passing over to and pressing against the finger 13 on the bolt will retract said bolt and permit the projection to be seated in the recess lOX, and thereby hold the bolt in retracted position. When it is desired to project the bolt forward, the key is revolved, and as the linger 13 is positioned so far to the rear of the casing as to allow the blade of the key t pass by the same without striking it the key will continue its revolution until it raises the tumbler, which will move the said tumbler out of engagement with the projection 15, and the key striking the finger 14 on the bolt will project the same forwardly. As soon as the key has become disengaged from the finger 14 the tumbler will resume its normal position and the projection 15 will be seated in the recess 10, substantially as shown in Fig. 1 of the drawings.

. In Fig. 5 of the drawings I have shown a modified form of myimproved lock, which embodies the usual bolt, as above described, which bolt has formed vtherein a longitudinally-extendng slot 12, through which eX- tends a lateral pin 17, formed on one side of the casing, which pin serves as a guide for the bolt. Instead of securing thespring 16 to the Vertical extension 6 it may be bent around 4the pin 17, substantially asshown.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

The combination of the face-plate, a casing secured thereto, a lining-bar locatedl in the lower part of the casing formed with Vertical wards on each side of the keyhole, and an u pwardly-projecting extension, a tumbler pivoted to the extension and formed with a longitudinal slot having recesses in its upper edge, and a sliding bolt having downwardlyprojecting fingers, and a lug projecting from the bolt and adapted to seat in the edge recesses. p

In testimony whereof I affix my signature in presence of two witnesses.

HARRY WALTER EICHER.

Y Witnesses:

WM. H. HoLzsHU, C. C. Cook. 

